Close one or all open files
Open and Close File
badpoem.txt file, read the first line, and then close the file.
fopen to open the file. This function assigns a unique file id to use for reading and writing to the file.
fid = fopen('badpoem.txt')
fid = 3
Read the first line from the file using
ans = 'Oranges and lemons,'
Close the file.
fileID — File identifier
File identifier of an open file, specified as an integer. Before closing a
fclose, you must use
fopen to open the file and
C/C++ Code Generation
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Usage notes and limitations:
fclose('all')syntax is not supported in thread-based environments.
Version HistoryIntroduced before R2006a
R2022b: Use function in thread-based environments
This function supports thread-based environments.